Sustainable building reduces the CO2 load early on, in the construction phase, and not just when fully operational. With Cobiax void formers, the drain on resources is significantly reduced early on, at the shell stage.
The much lower need for concrete leads to less need for transport with this construction material. Concrete is heavy, and haulage is expensive. The reduction in the amount of concrete in the slabs therefore leads to significantly lower CO2 load from transport vehicles, compared to conventional solid concrete slabs.
Sustainable building using Cobiax is financially sound, since the lighter slabs reduce load on the foundations and the load-bearing structure can be designed to be more delicate and lighter than with heavy, solid concrete. (Incidentally, using Cobiax also allows larger spans, meaning the rooms can be designed more open-plan, and converting them for alternative use later is easier.)
If the building is constructed using reinforced concrete, the only way to reduce CO2 load is to reduce the amount of concrete used.
The Cobiax void former systems is the ideal building component here.
Not only does it reduce the need for concrete in the slabs by up to 35%, it also enables slimmer overall construction and foundations, since the weight of the slabs is significantly reduced. This reduces the need for reinforcement steel and more concrete.
The German Sustainable Building Council (DGNB) draws specific attention to the importance of sustainable materials such as recyclable concrete, but also reduced transport costs and transport routes.
DGNB report (in German): https://www.dgnb.de/de/themen/nachhaltiges-bauen/
Cobiax voided flat slabs are approved, tried and tested, and safe. They are an easy way to change gear towards more sustainable construction right now.
Cobiax technology has won several awards. Cobiax won the Swiss Environmental Award in the “Technical Innovation” category back in 2010, and in the same year the German Materials Efficiency Award from the German Ministry of Economics and Technology. 2013 saw the Research Award for Sustainable Development, from the Federal Ministry of Research and Education.
All leading architecture and structural planning offices and institutions have the know-how and necessary software systems to plan new projects using sustainable Cobiax voided flat slabs, or to re-imagine existing draft plans using Cobiax technology with little effort.
Cobiax void former products come in different sizes, for slab depths from 20 to over 80 cm.